Steam-generator



(No Modell.)

0. F. BURTON.

STEAM GENERATOR. No. 253,000. Patented Ja.11.v 31, 1882.

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UNITED STATES PATENT OFFICE.

OSCAR F. BURTON, OF BROOKLYN, NEW YORK.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 253,000, dated January 31, 1882.

Application led July 9, 1881.-

To all whom it may concern:

Be it known that I, OSCAR F. BURTON, a citizen ofthe United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and usel'ul Improvements in Steam-Generators, ot' which the following is a specitication.

The object of this invention is to reduce the danger of explosions which frequently occur in steam-boilers when the water is heated to a high degree and the steam-pressure acting on it is suddenly reduced, so that a large body of water will instantaneously tlash into steam.

This invention consists in the combination, with a steam-boiler, of a feed-pipe connected thereto at or near its top, an overflow-pipe emanating from its top, and one or more discharge-pipes extending from its bottom part and connected to a steam-cylinder, so that the boiler is all the time kept full of water clear up to its top, and when the water has been heated steam forms only as-the heated water is permitted to escape from its discharge-pipe or pipes.

The invention consists, further, in the oombina-tion, wit-h a steam-boiler, ot' a feed-pum p, a feed-pipe extending from the pump to the top of the boiler, a safety-valve inclosed in a chamber which/ connects below the valve with the feed-pipe and with the boiler, and a wastepipe emanating from the valve-chamber above the valve.

The drawing represents a side view of my steam-generator.

In this drawing, the letter A designates a4 steam-boiler of any suitable construction. QWith this boiler is connected a feed-pump B, which draws its water from a well, O, througha pipe, a, and forces its water out through the pipe b. This pipev terminates in the chamber c of a safety-valve, D, below the valve, and from this chamber extends a pipe, d, into the topof the boiler A. The pipe d is connected to or formed into a coil, G, the object of which' will be presently explained. From the valve'- chamber c, above the valve, extends` the waste-pipe c, which leads back into the welll From the bottom part of the boiler extend two discharge-pipes, j' g, which connect with the opposite ends of a steam-cylinder, F, and which are provided with suitable valves, h i,

(No model.)

adapted to be operatedautomatically from the piston-rod or crank-shaft in the same manner as the slide-valve or steam-valves of an ordinary steam-engine.

The boiler is filled with water clear up to its top, the tire is started, and after the temperature of the water has been raised above 2120- sa y to 300 to 300O-theva-lves ht are alternately opened. As the heated water escapes into the steam-cylinder it expands at once into steam, and the steam piston is caused to move backward and forward. At the same time the feed-pump is set in motion and a regular supply of water is forced into the boiler, so that the same is always kept full. It` the feedpump throws in more water than is required, the safety-vale I) opens and the surplus water escapes through the waste-pipe e back into the well. By the coil GE a certain elasticity is imparted to 'the feed-pipe, so that sudden shocks are avoided, By these means a uniform pressure ot' water can be maintained in the boiler, and the boiler is always kept full of water clear up to its top, so that in the boiler itself no steam can form. If the boiler is full, the surplus Water passes back into the well and the heated water will expand into steam only when it is allowed to escape from the boiler into the steam cylinder ofthe engine or of the pump.

From the foregoing description it will be evident that no steam is permitted to form in the boiler, and the pressure to which the body of water is exposed cannot be suddenly reduced, and the danger -that a large quantity of water will instantly flash into steam is avoided.

Vhat I claim as new, and desire to secure by Letters Patent, isl. rlhe combination, with a steam-boiler, of a feed-pipe connected thereto at or near its top, an overflow or waste pipe emanating from its top, and one or more Vdischarge-pipes extending from its bottom part and connected to a steam-cylinder, substantially as shown and described.

2. The combination, substantially as hereinbet'ore described, of the steam-boiler, the feedpump, the feed-pipe extending from the pump to the top of the boiler, the safety-valve inclosed in a chamber which connects below the IOO valve with the feed-pipe and with the boiler', the boiler, and the waste-pipe emanating from ro and the waste-pipe emanating from the valvethe valve-chamber above the valve. chamber above the valve. 1n testimonywhereot' have hereunto sot my 3. The combination, substantially as hereinhand and seal in the presence of two subscribbefore described, of the steam-boiler, the feedin g witnesses. pump, the feed-pipe extending from the pump to the top of the boiler, the coil G, the safetyl Witnesses: valve inclosed in a chamber which connects XV. HAUFF, below the valve with the feed-pipe and with WILLIAM MILLER.

o. F.' BURTON [n s] 

